Results 31 to 40 of about 7,569,463 (308)

Word Series for Dynamical Systems and Their Numerical Integrators [PDF]

open access: yesFoundations of Computational Mathematics, 2015
We study word series and extended word series, classes of formal series for the analysis of some dynamical systems and their discretizations. These series are similar to but more compact than B-series. They may be composed among themselves by means of a simple rule.
Ander Murua, Jesús María Sanz-Serna
openaire   +4 more sources

Implementation of bagging in time series forecasting

open access: yesРоссийский технологический журнал
Objectives. The purpose of the article is to build different models of bagging, to compare the accuracy of their forecasts for the test period against standard models, and to draw conclusions about the possibility of further use of the bagging technique ...
Ia. V. Gramovich   +2 more
doaj   +1 more source

Towards the microfoundations of finance and growth [PDF]

open access: yes, 2007
We take a critical view of the standard approach to finance and growth. The mapping between the theory and empirics is shown to be poorly understood, and this is traced to deficiencies in our understanding of the microeconomics at play.
Trew, Alex
core   +2 more sources

Analysis of approaches to identification of trend in the structure of the time series

open access: yesРоссийский технологический журнал
Objectives. The study set out to compare the forecasting quality of time series models that describe the trend in different ways and to form a conclusion about the applicability of each approach in describing the trend depending on the properties of the ...
U. S. Mokhnatkina   +2 more
doaj   +1 more source

Using Wavelets to Identify Linear Dynamic Models [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية
The forecasting process of water cleaning in the city of Mosul was studied using the input and output variables represented by some tests performed on raw water before the filtration process, to be treated through multiple filtration stages. To determine
Youns M. Th. Al.Obeady   +2 more
doaj   +1 more source

Time-Series and Network Analysis in Quantum Dynamics: Comparison with Classical Dynamics [PDF]

open access: yesInternational Journal of Theoretical Physics, 2020
Time-series analysis and network analysis are now used extensively in diverse areas of science. In this paper, we applythese techniques to quantum dynamics in an optomechanical system: specifically, the long-time dynamics of the mean photon number in an archetypal tripartite quantum system comprising a single-mode radiation field interacting with a two-
Pradip Laha   +2 more
openaire   +3 more sources

Neural network analysis in time series forecasting

open access: yesРоссийский технологический журнал
Objectives. To build neural network models of time series (LSTM, GRU, RNN) and compare the results of forecasting with their mutual help and the results of standard models (ARIMA, ETS), in order to ascertain in which cases a certain group of models ...
B. Pashshoev, D. A. Petrusevich
doaj   +1 more source

Retrospective Analysis of Donor Lymphocyte Infusions in Pediatric Patients With Mixed Chimerism After Hematopoietic Stem Cell Transplantation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Allogeneic hematopoietic stem cell transplantation (alloHSCT) is an essential therapy for several malignant and nonmalignant diseases, but relapse and graft loss remain the principal threats to its success. Routine monitoring of chimerism and minimal residual disease (MRD) enables early detection of imminent recurrence and guides ...
Carmen Junk   +10 more
wiley   +1 more source

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin   +2 more
wiley   +1 more source

Dynamic Monitoring of Forest Land in Fuling District Based on Multi-Source Time Series Remote Sensing Images

open access: yesISPRS International Journal of Geo-Information, 2019
Time series remote sensing images can be used to monitor the dynamic changes of forest lands. Due to consistent cloud cover and fog, a single sensor typically provides limited data for dynamic monitoring.
Bingxin Bai, Yumin Tan, Dong Guo, Bo Xu
doaj   +1 more source

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